Properties

Label 2-15680-1.1-c1-0-30
Degree $2$
Conductor $15680$
Sign $1$
Analytic cond. $125.205$
Root an. cond. $11.1895$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3-s + 5-s − 2·9-s + 3·11-s − 13-s − 15-s + 3·17-s − 2·19-s + 6·23-s + 25-s + 5·27-s + 9·29-s + 8·31-s − 3·33-s + 10·37-s + 39-s + 2·43-s − 2·45-s − 3·47-s − 3·51-s + 3·55-s + 2·57-s − 12·59-s + 8·61-s − 65-s + 8·67-s − 6·69-s + ⋯
L(s)  = 1  − 0.577·3-s + 0.447·5-s − 2/3·9-s + 0.904·11-s − 0.277·13-s − 0.258·15-s + 0.727·17-s − 0.458·19-s + 1.25·23-s + 1/5·25-s + 0.962·27-s + 1.67·29-s + 1.43·31-s − 0.522·33-s + 1.64·37-s + 0.160·39-s + 0.304·43-s − 0.298·45-s − 0.437·47-s − 0.420·51-s + 0.404·55-s + 0.264·57-s − 1.56·59-s + 1.02·61-s − 0.124·65-s + 0.977·67-s − 0.722·69-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 15680 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 15680 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(15680\)    =    \(2^{6} \cdot 5 \cdot 7^{2}\)
Sign: $1$
Analytic conductor: \(125.205\)
Root analytic conductor: \(11.1895\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 15680,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.155678198\)
\(L(\frac12)\) \(\approx\) \(2.155678198\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
5 \( 1 - T \)
7 \( 1 \)
good3 \( 1 + T + p T^{2} \)
11 \( 1 - 3 T + p T^{2} \)
13 \( 1 + T + p T^{2} \)
17 \( 1 - 3 T + p T^{2} \)
19 \( 1 + 2 T + p T^{2} \)
23 \( 1 - 6 T + p T^{2} \)
29 \( 1 - 9 T + p T^{2} \)
31 \( 1 - 8 T + p T^{2} \)
37 \( 1 - 10 T + p T^{2} \)
41 \( 1 + p T^{2} \)
43 \( 1 - 2 T + p T^{2} \)
47 \( 1 + 3 T + p T^{2} \)
53 \( 1 + p T^{2} \)
59 \( 1 + 12 T + p T^{2} \)
61 \( 1 - 8 T + p T^{2} \)
67 \( 1 - 8 T + p T^{2} \)
71 \( 1 + p T^{2} \)
73 \( 1 + 14 T + p T^{2} \)
79 \( 1 + 5 T + p T^{2} \)
83 \( 1 - 12 T + p T^{2} \)
89 \( 1 + 12 T + p T^{2} \)
97 \( 1 + 17 T + p T^{2} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−16.16827472457531, −15.41583048519115, −14.73908860561527, −14.40449799829849, −13.83095254236839, −13.24446162947597, −12.44427834039593, −12.13887722211752, −11.46200529102784, −11.04242209394431, −10.33190321462186, −9.788268973469264, −9.209561840367904, −8.511537292713342, −8.061621443104979, −7.112405022007605, −6.450768950151215, −6.159730002591052, −5.365252379630362, −4.748097842219908, −4.140073605297645, −2.967835558332287, −2.676040266061490, −1.357852820988451, −0.7288560450425921, 0.7288560450425921, 1.357852820988451, 2.676040266061490, 2.967835558332287, 4.140073605297645, 4.748097842219908, 5.365252379630362, 6.159730002591052, 6.450768950151215, 7.112405022007605, 8.061621443104979, 8.511537292713342, 9.209561840367904, 9.788268973469264, 10.33190321462186, 11.04242209394431, 11.46200529102784, 12.13887722211752, 12.44427834039593, 13.24446162947597, 13.83095254236839, 14.40449799829849, 14.73908860561527, 15.41583048519115, 16.16827472457531

Graph of the $Z$-function along the critical line